As Apple seeds a third beta of both iOS 8 (build 12A4318c) and OS X Yosemite Developer Preview (build 14A283j) to developers, we're dutifully updating our articles with a running list of changes.
In the meantime, new betas of the accompanying Apple TV firmware - as well as Find My iPhone and Find My Friends betas - are now available to Apple's registered iOS developers through the company's Dev Center...